Science Quizz For Grade 6 To Unlimited

The statement "There are 79 bones of a human being" is not correct. The human body is made up of 206 bones, not 79. Therefore, the correct answer is False.

Starfish is an example of invertebrates because they do not have a backbone or a vertebral column. Invertebrates are animals that lack a backbone and make up the majority of the animal kingdom. Starfish belong to the phylum Echinodermata and are characterized by their radial symmetry, spiny skin, and ability to regenerate limbs. As they do not possess a backbone, they are classified as invertebrates.

Fish are cold-blooded animals, meaning that their body temperature is determined by the temperature of their environment. Unlike warm-blooded animals, such as mammals and birds, fish do not have the ability to regulate their internal body temperature. Instead, their body temperature fluctuates with the temperature of the water they live in. This adaptation allows fish to survive in a wide range of aquatic environments, as they can adjust their metabolism and activity levels according to the temperature of their surroundings.

Carbohydrates are a source of quick energy because they are easily broken down into glucose, which is the body's preferred source of fuel. When carbohydrates are consumed, they are quickly digested and absorbed into the bloodstream, providing a rapid source of energy for the body's cells. This is particularly important during activities that require immediate energy, such as high-intensity exercise or mental exertion. Protein and minerals, on the other hand, are not typically used as a direct source of energy but have other important functions in the body.

Wheat is the correct answer because it is a good source of dietary fiber. Fiber is a type of carbohydrate that cannot be digested by the body, but it plays a crucial role in maintaining a healthy digestive system. It adds bulk to the stool, promotes regular bowel movements, and helps prevent constipation. Wheat, especially whole wheat, is rich in fiber and is commonly consumed in the form of bread, pasta, and cereals. It is recommended to include fiber in the diet for overall health and to reduce the risk of various diseases such as heart disease, diabetes, and certain types of cancer.

Frogs are not mammals. They belong to the class Amphibia, which includes animals like frogs, toads, and salamanders. Mammals, on the other hand, belong to the class Mammalia and are characterized by features such as having mammary glands, giving birth to live young, and having hair or fur. Therefore, the correct answer is Frog.

The human body is made up of cells, which are the basic building blocks of life. Cells are responsible for carrying out all the functions and processes necessary for the body to function properly. They make up tissues, organs, and systems, and work together to maintain homeostasis and ensure the overall health and functioning of the body. Without cells, the human body would not be able to perform essential functions such as respiration, digestion, and reproduction.

The given question asks for an example of a fish starting with the letter "S". The correct answer is "Shark," which is a type of fish. Sharks are a diverse group of cartilaginous fish known for their sharp teeth and streamlined bodies. They are typically found in oceans around the world and are known for their predatory behavior.

The given question states "giving bird to babies" and asks for the correct answer. The correct answer is "Mammals". This implies that mammals are the animals that give birth to their babies, as opposed to birds or other animals that lay eggs.

The comparison between the human body and a machine suggests that the human body operates in a similar way to a machine. This comparison implies that the human body has various systems and processes that work together to perform specific functions, just like a machine. It highlights the complexity and efficiency of the human body's functioning, drawing parallels to the intricate workings of a machine.

The bone is an example of tissue because bone tissue is a specialized connective tissue that provides support and protection to the body. It is made up of cells called osteocytes, which are embedded in a hard matrix of calcium salts and collagen fibers. Bone tissue is responsible for the formation and maintenance of the skeletal system, allowing for movement, support, and the protection of vital organs.

The correct answer is vertebrate. A vertebrate is an animal that possesses a backbone or a spinal column. This characteristic is shared by all vertebrates, including mammals, birds, reptiles, amphibians, and fish. The skeleton of a vertebrate provides support, protection, and facilitates movement. It is composed of bones or cartilage, which are interconnected to form a structure that supports the body and allows for the attachment of muscles. Therefore, the presence of a skeleton is a defining characteristic of all vertebrate animals.